Laser material interactions in tamped materials on picosecond time scales in aluminum

A 100 ps laser is used to probe the pressure generation, depth of the non-solid ablator, and the non-linear optical effects through tamper materials. Samples consisted of an aluminum ablator with tampers of sapphire and coverslip glass. In general, the sapphire tamped sample achieves higher pressure...

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Bibliographic Details
Published inApplied physics letters Vol. 123; no. 20
Main Authors Parsons, Sophie E., Turner, Ross E., Armstrong, Michael R., Radousky, Harry B., Garay, Javier E., Beg, Farhat N.
Format Journal Article
LanguageEnglish
Published Melville American Institute of Physics 13.11.2023
American Institute of Physics (AIP)
Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Aluminum
Applied physics
hydrodynamic codes
laser ablation
laser materials
Lasers
optical effects
Sapphire
shock waves
speed of sound
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Summary:A 100 ps laser is used to probe the pressure generation, depth of the non-solid ablator, and the non-linear optical effects through tamper materials. Samples consisted of an aluminum ablator with tampers of sapphire and coverslip glass. In general, the sapphire tamped sample achieves higher pressures at lower laser intensities as compared to the coverslip glass tamped sample. Attempts to model the details of this set of experimental data with standard available radiation coupled hydrodynamic codes make clear that more physics is needed in these simulations to accurately predict the impact of the tamper material on the pressure generation and the depth of non-solid aluminum.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
LLNL-JRNL-843831
Defense Threat Reduction Agency (DTRA)
AC52-07NA27344; HDTRA12020001
USDOE National Nuclear Security Administration (NNSA)
ISSN:0003-6951
1077-3118
DOI:10.1063/5.0169533